Constructed of heavy-duty 1000 denier nylon Reinforced stitching to ensure durability Includes 100 oz. Drink system protected antimicrobial treatment Bite Me¢ç bite valve and patent-pending quick-disconnect system 3-D mesh back panel with frame External hydration reservoir access Numerous internal pockets and dividers Dual antenna ports Robust waist belt with additional attachment points Tie-down straps in main compartment